70647398915 has 4 divisors (see below), whose sum is σ = 84776878704. Its totient is φ = 56517919128.

The previous prime is 70647398893. The next prime is 70647398917. The reversal of 70647398915 is 51989374607.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70647398915 - 2⁸ = 70647398659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70647398917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7064739887 + ... + 7064739896.

It is an arithmetic number, because the mean of its divisors is an integer number (21194219676).

Almost surely, 2^70647398915 is an apocalyptic number.

70647398915 is a deficient number, since it is larger than the sum of its proper divisors (14129479789).

70647398915 is a wasteful number, since it uses less digits than its factorization.

70647398915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14129479788.

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 70647398915 in words is "seventy billion, six hundred forty-seven million, three hundred ninety-eight thousand, nine hundred fifteen".